Rotating or revolving press



Jan. 16, 1923.

F. KILIAN.

ROTATING 0R REVOLVING PRESS.

HLED OCT. 15. 19M.

Patented Jan. 165, 1923.

FRITZ KILIAN, OF BERLIN-LIGHTENBERG,

GERMANY, ASSIGNOR, BY MESNE ASSIGN- MENTS, TO THE CHEMICAL FOUNDATION,INC, A. CORPORATION OF DELAWARE.

ROTATING O13, REVOLVING PRESS.

Application filed October 15, 1917. Serial No. 196,774.

To all whom it may concern:

Be it known that I, Fnrrz KlLnm, subject of the King of Prussia,residing at Berlin-Lichtenberg, Germany, Herzbergstr. 102-101, haveinvented certain new and useful Improvements in and Relating to Rotatingor RevolvingPresses, of which the following is a specification.

The present invention relates to improvements in revolving or rotatingpressesfor the treatment of pulverulent material in which the pressingcylinders are arranged in the rim of a rotatable disk in the form ofradial bores.

In presses of this kind, as heretofore con structed, the abutment or thecounter hearing for the pressure exerted on the material has been in theform of an endless chain, the single links of which were caused to bearsuccessively against the openings of the press cylinders and to movewith the latter for a certain distance. Such devices have beencomplicated and there was consequently considerable Wear ofthe movableparts of the chain, especially in view of the character of the materialoperated on; and it has been diliicult to insure that the desiredpressure would be effective during a definite period of time. It hasalso been proposed to provide disk-like bodies rolling along therotating or revolving press cylinders with counter dies which for thepurpose of effecting a. preliminary pressing have to enter the radialbores from the outside. In this case it is difficult to arrange theparts so that the counter dies will fit closely and accurately in themouths of the cylinders on account of the gear wheel like engagement ofthe said parts. Furthermore the device in such a case is subjected toconsiderable wear.

According to the present invention, the

Figure 2 is a longitudinal section taken on the line A-B of Figure 1.

In a frame 1 consisting of two parts a disk 2 is journalled having, inthe embodiment illustrated, a single laterally projecting flange 3,although it will be obvious that such flange might, if desired, beduplicated on the other face of the disk. Upon the shaft 4 of the disk2, gear wheel 5 is arranged which meshes with a corresponding gear wheelmounted on the shaft 7 of a second disk 6. Figure 2. The shaft 7 of thedisk 6 carries a driving crank 8, which in the example shown is in theform of a hand crank, but which may be replaced by any suitablemechanical drive.

In the rim 3 of the disk 2 are formed a series of radial bores 9constituting the pressing matrices, only a few of which are shown in thedrawings, others being indicated by dash and dotted lines. To theexample shown. only one row of matrice bores 9 is provided. but if theparts 2, 3 are made of sufficient width, a plurality of rows of bores 9side by side may be provided.

In each of the bores 9 is arranged a die 10 that is connected to asuitable stem having at itsinner end a. head 11 that cooperates with themeans for reciprocating the die. In the form of the inventionillustrated, said. die controlling means includes three rollers 12, 13and 14 and the rail or guide members 15, 16 and 17 arranged between thesaid rollers.

At the outer periphery of the rim 3 a hopper 18 is provided from whichthe matrices 9 moving underneath the said hopper, receive their charges.

r pressure block 19 tightly bearing against the rim 3 is joined to thehopper 18, being mounted in a bridge 20. Underneath the pressure block19 a roller 12 is arranged,the dimensions of which are chosen in such amanner. that each of the dies running over the said roller is movedoutwardly for certain distance so that the filling in the correspondingmatrices. receives a preliminary pressing against the part 19.

After leaving the rollers 12 each of the dies 10, 11 moves over the railmember 15 to a roller 13 without changing its position with regard tothe rim the roller 13 imparts a slight additional outward movement tothe dies, the pressure of which is resisted by h d sk 6 rotating withthe disk 8. The

roller 13 effects the last outward moving of each die, that is to sayfinishes the pressing operation. If the positions of the dies beforereaching the hopper l8 and in engagement with the roller 13 are comparedwith each other, it will at once be seen that a very great compressionof the material. within the matrices or bores has taken place. If thediameter of the matrices is correspondingly small and the diameter ofthe disks 3 and 6 compa 'atively large, a perfectly satisfactory closureof the matrice openings will be effected by the rotating body 6.

From the roller 13- the dies are carried along over the rail or guidemember 16 and to a roller 14. which imparts further outwardmovementthereto, so that the compressed material drops out of the matrice bores,into a chute 21. In passing from the roller l-i to the hopper 18 eachdie must be moved inward, so that the co1'res )onding matrices mayreceive a freshcharge. This is effected by the rail member 17 the outerguide ledge of which grips over the die heads 11 and thereby retractsthe dies. The rail member 17 is adjustably mounted at 22, so that thedepths of the matrices and amount of each charge of material may bealtered if desired.

During the main pressing operation by the roller 13, rolling frictionoccurs between the matrice filling and the counter bearing (3. Duringthe preliminary pressing by the roller 12, the counter bearing is formedby a fixed part 19, so that in this case sliding friction takes placebetween the filling and the said part 19. This seems to be immaterial,as the pressing force at this place still considerably low. A rotatingbody could of course also be used opposite the roller 12, as a counterhearing if desired.

Having thus described the invention, what is claimed is:

1. In a rotary press for pulverulent material, the combination of arotary body provided with a plurality of peripheral matrices, a die orplunger within each matrix. a smooth surfaced revolving cylindricalabutment bearing against said rotary body and adapted to successivelyclose matrices therein at the practical conclusion of the first 90 ofrotation of said rotary body, said cylindrical abutment cooperating withmeans within said rotary body adapted to positively force outward thedieor plunger in the matrix closed by said abutment 2. In a rotary pressfor" pulverulent material, the combination of a rotary shell having aplurality of radial. bores therein forming peripheral matrices, a die orplunger in each matrix having its stem extending through the bore to theinterior of the shell, a smooth surfaced revolving, cylindrical abutmentbearing against the outer surface of the shell and adapted tosuccessively'close matrices therein at the practical conclusion of thefirst 90 of rotation of said. rotary body, said cylindrical abutmentcooperating with a roller arranged within the shell and adapted toengage the inner end of the plunger in the matrix closed by saidabutment and to force said plunger outward.

3. In a rotary press for pulverulent material, the combination of arotary shell having a plurality of radial bores therein formingperipheral matrices, a die orplunger in each matrix having its stemextending through the here to the interior of the shell, a plurality ofrollers arranged within the shell and adapted to successively move theplungers radially outward gradually increasing distances as the shellrotates, a fixed abutment adapted to close the matrixopposite one ofsaid rollers and act as a counter bearing for the pressing force exertedthereby, a smooth surfaced revolving cylindrical abutment cooperating ina similarrmanner with another of the rollers, and means adjustablymounted for positively moving the plungers inwardly of the shell afterpassing the last of said rollers.

4t. In a rotary press for pulverulent material, the combination of arotary shell having a plurality of radial bores therein formingperipheral matrices, a die or plunger in each matrix having its stemextending through the bore to the interior of the shell, said plungersbeing fitted with a head member at their inner end, a plurality ofrollers arranged within the shell andiadaptedto successively move theplungers radially outward gradually increasing distances as the shellrotates, a fixed abutment adapted to close the matrix opposite one ofsaid rollers and act as a counter bearing for the pressing force exertedthereby, a smooth surfaced revolving cylindrical abutment, cooperatingin a similar manner at the practical conclusion of the first 90 ofrotation with another of the rollers, and a rail member adjustablymounted for positively moving the plungers inwardly of the shell afterpassing the last of said rollers/ I In testimony whereof I atlix mysignature in presence of two witnesses. I

FRITZ KILIAN.

"Witnesses MARIA Wreeann, Ense WIEGAND,

